CN211375572U - Touch device capable of being externally connected with electrical component and electronic equipment - Google Patents

Touch device capable of being externally connected with electrical component and electronic equipment Download PDF

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Publication number
CN211375572U
CN211375572U CN201922282353.6U CN201922282353U CN211375572U CN 211375572 U CN211375572 U CN 211375572U CN 201922282353 U CN201922282353 U CN 201922282353U CN 211375572 U CN211375572 U CN 211375572U
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touch
electrical interface
substrate
electrical
circuit
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CN201922282353.6U
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张学强
李艳强
于国华
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Nanchang OFilm Display Technology Co Ltd
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Nanchang OFilm Display Technology Co Ltd
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Abstract

The embodiment of the application discloses a touch device capable of being externally connected with an electrical component and electronic equipment, belonging to the technical field of touch; the touch device includes: a substrate including a touch area; and a circuit layer disposed on the substrate; the circuit layer comprises a touch circuit and an external circuit; the touch circuit is arranged in the touch area and used for sensing touch operation; the external circuit comprises a first electrical interface which is used for electrically connecting the electrical element. In this embodiment, the touch device includes an external circuit besides the substrate and the touch circuit, so as to realize the electrical connection with the external electrical component through the first electrical interface of the external circuit, so that the external electrical component can work, and the function is more various. Meanwhile, the first electrical interface in the embodiment of the application is directly arranged on the substrate, so that on one hand, the utilization rate of the substrate can be improved, and on the other hand, compared with an installation plate and an interface which are additionally arranged on the electronic equipment, the cost can be saved.

Description

Touch device capable of being externally connected with electrical component and electronic equipment
Technical Field
The present disclosure relates to the field of touch technologies, and particularly to a touch device and an electronic device.
Background
With the development and application of computer technology, a touch device is increasingly used in various electronic devices as a human-computer interaction device. The user can realize the operation of the host of the electronic equipment through the touch operation on the touch device, so that the man-machine interaction is more straightforward.
A touch device in the prior art generally comprises a substrate and a touch circuit disposed on the substrate, so as to sense a touch operation through the touch circuit; the function is single.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a touch device capable of being externally connected with an electrical component and an electronic device, and can solve the problem of single function of the existing touch device. The technical scheme is as follows;
in a first aspect, an embodiment of the present application provides a touch device capable of being externally connected to an electrical component, including:
a substrate including a touch area; and
the circuit layer is arranged on the substrate; the circuit layer comprises a touch circuit and an external circuit;
the touch circuit is arranged in the touch area and used for sensing touch operation;
the external circuit comprises a first electrical interface, the first electrical interface comprises a first positive electrode bonding pad and a first negative electrode bonding pad, the first positive electrode bonding pad is used for being electrically connected with a positive electrode interface of the electrical element, and the first negative electrode bonding pad is used for being electrically connected with a negative electrode interface of the electrical element, so that when current flows from the first positive electrode bonding pad to the first negative electrode bonding pad, the electrical element works.
Furthermore, the substrate also comprises a non-touch area positioned outside the touch area, and the external circuit is arranged in the non-touch area.
The beneficial effects of the further scheme are as follows: the external circuit is arranged in the non-touch area, so that the sensing effect of the touch area is not influenced by the external circuit.
Further, the device also comprises a driving component, wherein the driving component is arranged on the base material; the driving component is electrically connected with the first electrical interface to generate current flowing to the first electrical interface.
The beneficial effects of the further scheme are as follows: the driving assembly which generates the current flowing to the first electrical interface is directly arranged on the substrate, so that the electronic equipment can be more conveniently assembled.
The second electric interface is arranged on the substrate; the second electrical interface is electrically connected with the first electrical interface; the second electrical interface is also used for being electrically connected with an external driving circuit;
wherein the second electrical interface is configured to receive the current generated by the driver circuit and direct the current to the first electrical interface.
The beneficial effects of the further scheme are as follows: the second electrical interface is arranged on the substrate, and the driving circuit which generates the current flowing to the second electrical interface is arranged outside, so that the production process of the touch device can be simplified, and the production efficiency can be improved.
Further, the first electrical interface is a flash light interface.
The beneficial effects of the further scheme are as follows: set up first electrical interface into the flash light interface, be convenient for install the flash light on the electronic equipment that has camera and touch device simultaneously to can pass through the flash light filling when making the shooting.
Further, the first electrical interface is a key interface.
The beneficial effects of the further scheme are as follows: the first electrical interface is set to be a key interface, so that the key can be conveniently installed on the electronic equipment with the key and the touch device at the same time.
Further, still include the copper rete, the copper rete sets up in the surface of first electrical interface.
The beneficial effects of the further scheme are as follows: the copper film layer is arranged on the first electrical interface, so that the reliability of connection between the first electrical interface and the electrical appliance element can be enhanced.
Furthermore, the base material is made of flexible material.
The beneficial effects of the further scheme are as follows: the substrate is made of flexible materials, so that the substrate can be bent, the non-touch area can be bent to the back, and the maximization of the screen occupation ratio of the touch area is realized.
Furthermore, the base material is made of a light-transmitting material.
The beneficial effects of the further scheme are as follows: the substrate is made of a light-transmitting material, and normal display of the electronic equipment can be guaranteed for the electronic equipment with the touch area and the display area overlapped.
In a second aspect, an embodiment of the present application provides an electronic device, including any one of the touch devices described above.
The beneficial effects brought by the technical scheme provided by some embodiments of the application at least comprise:
in this embodiment, the touch device includes an external circuit besides the substrate and the touch circuit, so as to realize the electrical connection with the external electrical component through the first electrical interface of the external circuit, so that the external electrical component can work, and the function is more various. Meanwhile, the first electrical interface in the embodiment of the application is directly arranged on the substrate, so that on one hand, the utilization rate of the substrate can be improved, and on the other hand, compared with an installation plate and an interface which are additionally arranged on the electronic equipment, the cost can be saved. The first electrical interface is arranged to comprise the bonding pad, so that the bonding pad is favorably and stably fixed on the substrate due to the large area of the bonding pad, and other components such as electrical elements and the like are conveniently connected with the bonding pad; the first electrical interface is arranged to comprise a first positive electrode bonding pad and a first negative electrode bonding pad, the first positive electrode bonding pad and the first negative electrode bonding pad are respectively used for being electrically connected with a positive electrode interface and a negative electrode interface of the electrical element, and the electrical element can work when current flows from the first positive electrode bonding pad to the first negative electrode bonding pad.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a touch device capable of being externally connected with an electrical component according to an embodiment of the present disclosure;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
fig. 3 is a schematic diagram of a driving circuit of a touch device capable of being externally connected with an electrical component according to an embodiment of the present disclosure when being externally connected with a flashlight;
fig. 4 is a schematic diagram of a driving circuit of a touch device capable of being externally connected with an electrical component according to an embodiment of the present disclosure when a key is externally connected.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application, as detailed in the appended claims.
In a first aspect, referring to fig. 1 and fig. 2, an embodiment of the disclosure provides a touch device 100 capable of being externally connected with an electrical component 200, including a substrate 110 and a circuit layer 120 disposed on the substrate 110.
Electrical component 200 may be any component. For example, the electrical component 200 may be a flashlight, a key, or the like. The touch device 100 is any device capable of determining a touch operation of one or more objects; the touch operation comprises presence, position and/or motion. Touch device 100 may be an input device for a larger computing system; for example, the touch device 100 may be an opaque touch pad integrated or externally mounted on a notebook or desktop computer. The touch device 100 can also be applied to a smaller computing system; such as a touch screen integrated in a cellular phone.
The substrate 110 includes a touch area 111. The substrate 110 may include two oppositely disposed planar surfaces; the touch area 111 may be located on one of the planes. Specifically, the touch area 111 may occupy the whole of the plane, or the touch area 111 may occupy only a part of the plane.
The substrate 110 may be coated with a metal film, and then the metal film on the substrate 110 is etched to form the wiring layer 120. The metal film may include a conductive oxide film on a side close to the substrate 110, and a silver-containing film on a side of the conductive oxide film away from the substrate 110. Since the circuit layer 120 is formed by etching a metal film, the circuit layer 120 also includes a conductive oxide film on a side close to the substrate 110 and a silver-containing film on a side of the conductive oxide film away from the substrate 110. The conductive oxide film may be a transparent metal oxide such as ITO (indium tin oxide) or IZO (indium zinc oxide). The silver-containing film may be silver and/or a silver alloy. By providing the silver-containing film on the conductive oxide film, the resistance of the wiring can be effectively reduced because the resistance value of silver is low. The thickness of the wiring layer 120 may be 50nm or less, and preferably, the thickness of the wiring layer 120 may be 20nm to 30 nm.
The circuit layer 120 includes a touch circuit 121 and an external circuit 122. The touch line 121 is disposed in the touch area 111 for sensing a touch operation. The touch pad 121 may be formed by etching a metal film. The touch lines 121 may include sensing electrodes and traces connecting the sensing electrodes, and the sensing electrodes and the traces may be formed by etching a metal film. Of course, in order to facilitate the connection of the touch circuit 121 and the external circuit board, the touch circuit 121 may further include a pad, and the pad is connected to an end of the trace away from the sensing electrode. The pad may be made of a metal material.
The external connection circuit 122 includes a first electrical interface 1221, and the first electrical interface 1221 is used for electrically connecting the electrical device 200. The first electrical interface 1221 can be any component capable of providing an electrical connection. For example, the first electrical interface 1221 can be one or more connecting wires. The connecting lines may be wires or traces. Of course, the first electrical interface 1221 can be one or more pads to facilitate the stable attachment of the first electrical interface 1221 to the substrate 110 and to facilitate the electrical connection between the first electrical interface 1221 and the electrical component 200. The pad may be made of a metal material. For example, the bonding pad can be made of gold, silver, copper, nickel, molybdenum, aluminum, and the like. The pads may be of any shape. For example, the pad may have a hemispherical shape, a rectangular parallelepiped shape, or the like. To facilitate connection of electrical component 200 to the pads, the width of the pads may be greater than the width of the pins of electrical component 200. The number of pads included in first electrical interface 1221 may be different for different types of electrical components 200. For example, when first electrical interface 1221 includes two pads, first electrical interface 1221 can be adapted for use with electrical component 200 having two pins. When the first electrical interface 1221 includes two pads, the first electrical interface 1221 may include a first positive pad 12211 and a first negative pad 12212, the first positive pad 12211 is electrically connected to the positive interface of the electrical component 200, and the first negative pad 12212 is electrically connected to the negative interface of the electrical component 200, so that when a current flows from the first positive pad 12211 to the first negative pad 12212, the electrical component 200 operates.
In the embodiment of the present disclosure, the touch device 100 further includes an external circuit 122 besides the substrate 110 and the touch circuit 121, so as to be electrically connected to the external electrical device 200 through the first electrical interface 1221 of the external circuit 122, so that the external electrical device 200 can work, and the functions are more diverse. Meanwhile, the first electrical interface 1221 in the embodiment of the present application is directly disposed on the substrate 110, so that on one hand, the utilization rate of the substrate 110 can be improved, and on the other hand, compared with an additional mounting plate and an additional interface disposed on the electronic device, the cost can be saved.
The plane of the substrate 110 on which the touch area 111 is disposed may only include the touch area 111, and the external connection lines 122 may be located in the touch area 111. However, since the external wires 122 disposed in the touch area 111 may affect the sensing effect of the touch area 111, it is preferable that the substrate 110 further includes a non-touch area 112 outside the touch area 111, and the external wires 122 are disposed in the non-touch area 112. The touch area 111 and the non-touch area 112 together occupy the entirety of one plane. The touch area 111 and the non-touch area 112 may be located on both sides of the plane, respectively. The touch area 111 may also be located in the middle of the plane, so that the non-touch area 112 is located at the periphery of the touch area 111.
In order to enable the electrical device 200 disposed on the first electrical interface 1221 to work smoothly, the first electrical interface 1221 needs to be electrically connected to the driving component 130, so that the driving component 130 generates a current flowing to the first electrical interface 1221. The driving component 130 may belong to the touch device 100 as a whole. The driving component 130 may also belong to the touch device 100. When the entirety of the driving element 130 belongs to the touch device 100, the entirety of the driving element 130 may be disposed on the substrate 110. Specifically, the entirety of the driving element 130 may be disposed in the non-touch region 112. When a portion of the driving element 130 belongs to the touch device 100, the portion of the driving element 130 belonging to the touch device 100 may be disposed on the substrate 110.
The driving assembly 130 may include a second electrical interface 131 and a driving circuit 132, and the second electrical interface 131 may be electrically connected to the first electrical interface 1221; the second electrical interface 131 may also be electrically connected to the driving circuit 132, so that the second electrical interface 131 can receive the current generated by the driving circuit 132 and direct the current to the first electrical interface 1221. When part of the driving component 130 belongs to the touch device 100, only the second electrical interface 131 may belong to the touch device 100. In this case, the driving circuit 132 is the driving circuit 132 provided outside.
When the substrate 110 includes the non-touch area 112, the second electrical interface 131 can be disposed on the non-touch area 112 of the substrate 110. For convenience of manufacturing and shaping, the second electrical interface 131 and the first electrical interface 1221 may be located in the non-touch area 112 on the same side of the touch area 111.
The second electrical interface 131 can be any component capable of providing an electrical connection. For example, the second electrical interface 131 may be one or more connecting wires. The connecting lines may be wires or traces. Of course, the second electrical interface 131 may be one or more pads to facilitate the stable fixing of the second electrical interface 131 on the substrate 110 and the electrical connection between the second electrical interface 131 and the first electrical interface 1221 and the driving circuit 132. The second electrical interface 131 may include the same number of pads as the first electrical interface 1221. For example, when the first electrical interface 1221 includes two pads, the second electrical interface 131 may also include two pads; when the first electrical interface 1221 includes the first positive pad 12211 and the first negative pad 12212, the second electrical interface 131 may include the second positive pad 1311 and the second negative pad 1312, the second positive pad 1311 may be electrically connected to the first positive pad 12211, and the second positive pad 1311 may be electrically connected to the positive interface of the driving circuit 132; the second negative pad 1312 may be electrically connected to the first negative pad 12212, and the second negative pad 1312 may be further electrically connected to the negative interface of the driving circuit 132.
Electrical component 200 may be any component. To an electronic device having a camera and a touch device 100 at the same time, such as a mobile phone, in order to enhance the exposure effect of the camera in the photographing process, a flash lamp is generally added to the electronic device, so as to play a light supplementing effect during photographing. At this time, in order to improve the utilization rate of the substrate 110 of the touch device 100 and save the cost, the first electrical interface 1221 may be directly added on the substrate 110, so as to externally connect the flash lamp through the first electrical interface 1221, so that the flash lamp can work during photographing; at this time, the electrical component 200 is a flash, and the first electrical interface 1221 of the touch device 100 is a flash interface. The flash interface can be used for electrically connecting the LED flash. The flash lamp interface can also be used for electrically connecting a flash lamp which adopts high-pressure filling inert gas in the lamp; such as a xenon flash lamp.
When the first electrical interface 1221 is a flash interface, and the first electrical interface 1221 includes a first positive pad and a first negative pad 12212, and the second electrical interface 131 includes a second positive pad 1311 and a second negative pad 1312, referring to fig. 3, the driving circuit 132 may include a driving chip U1, a first resistor R1, a first capacitor C1, a second capacitor C2, and a microprocessor U2, and the driving chip U1 may be an integrated chip of model SGM 3110. The VOUT port of the driving chip U1 may be electrically connected to the ADC sampling port of the microprocessor U2 through the first resistor R1, the SHND port of the driving chip U1 may be electrically connected to the control port of the microprocessor U2, the GND port of the driving chip U1 may be grounded, and the VIN port of the driving chip U1 may be electrically connected to a power supply. The first capacitor C1 may be connected in series between the C + port and the C-port of the driver chip U1. The second capacitor C2 may be connected in series between the VOUT port and the GND port of the driver chip U1. The second positive pad 1311 may be electrically connected between the ADC sampling port of the microprocessor U2 and the first resistor R1, and the second positive pad 1311 may also be electrically connected to the first positive pad 12211; the second negative pad 1312 may be grounded, and the second negative pad 1312 may be electrically connected to the first negative pad 12212. In the attached drawings, the electrical element is an LED flash lamp.
For an electronic device, such as a mobile phone, having both a key and a touch device 100, in order to improve the utilization rate of the substrate 110 of the touch device 100 and save the cost, a first electrical interface 1221 may be directly added on the substrate 110, so as to externally connect the key through the first electrical interface 1221, so as to enable the key to work; at this time, the electrical component 200 is a key, and the first electrical interface 1221 of the touch device 100 is a key interface.
When the first electrical interface 1221 is a key interface, and the first electrical interface 1221 includes a first positive pad 12211 and a first negative pad 12212, and the second electrical interface 131 includes a second positive pad 1311 and a second negative pad 1312, referring to fig. 4, the driving circuit 132 may include a power supply VDD, an NMOS transistor N1, a second resistor R2, a third resistor R3, and a central processing unit. The grid electrode of the NMOS transistor N1 can be grounded through a second resistor R2, the source electrode of the NMOS transistor N1 can be directly grounded, and the drain electrode of the NMOS transistor N1 can be connected to the central processing unit; the drain of the NMOS transistor N1 may also be connected to the power supply VDD through a third resistor R3. The second positive electrode pad 1311 may be electrically connected to a power source VDD, and the second positive electrode pad 1311 may be further electrically connected to the first positive electrode pad 12211; the second negative pad 1312 may be electrically connected to the source of the NMOS transistor N1, and the second negative pad 1312 may also be electrically connected to the first negative pad 12212. The electrical element in the drawing is a key K1.
To enhance the reliability of the connection between the first electrical interface 1221 and the electrical device 200, the touch device 100 may further include a copper film layer disposed on the outer surface of the first electrical interface 1221.
When the circuit layer 120 includes ITO and silver on a side close to the substrate 110, a solder paste layer may be disposed on the first electrical interface 1221 to prevent the touch device 100 from being damaged when the electrical device 200 is externally connected. The melting point of the solder paste is 138 ℃, the crystallization temperature of the ITO is 140 ℃, and the touch device 100 is not damaged when the electrical component 200 is externally connected.
When the touch device 100 overlaps the touch area 111 and the display area on the electronic device, such as a touch screen of a mobile phone, in order to maximize the screen ratio between the display area and the touch area 111, the substrate 110 may be made of a flexible material, and specifically, the substrate 110 may be a flexible sheet structure, so that the substrate 110 can bend the non-touch area 112 to the back of the touch area 111. When the substrate 110 is a flexible sheet structure, the substrate 110 may be made of PET (polyethylene terephthalate), COP (cyclic olefin copolymer), or other materials. Of course, the substrate 110 may be made of a hard material.
When the touch device 100 is disposed in the touch area 111 and the display area of the electronic device, such as a touch screen of a mobile phone, the substrate 110 may be made of a transparent material to realize normal display of the electronic device. When the touch area 111 and the display area of the touch device 100 on the electronic device are not overlapped, such as a touch pad of a notebook computer, the substrate 110 may also be made of a non-transparent material.
In a second aspect, an embodiment of the present application provides an electronic device, including any of the touch devices 100 described above. The electronic device may be a smartphone, wearable device, computer device, television, vehicle, camera, monitoring device, or the like.
In the description of the present application, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art. Further, in the description of the present application, "a plurality" means two or more unless otherwise specified. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present application and is not to be construed as limiting the scope of the present application, so that the present application is not limited thereto, and all equivalent variations and modifications can be made to the present application.

Claims (10)

1. A touch device capable of being externally connected with an electrical component is characterized by comprising:
a substrate including a touch area; and
the circuit layer is arranged on the base material; the circuit layer comprises a touch circuit and an external circuit;
the touch circuit is arranged in the touch area and used for sensing touch operation;
the external connection circuit comprises a first electrical interface, the first electrical interface comprises a first positive electrode bonding pad and a first negative electrode bonding pad, the first positive electrode bonding pad is used for being electrically connected with a positive electrode interface of the electric appliance element, and the first negative electrode bonding pad is used for being electrically connected with a negative electrode interface of the electric appliance element, so that when current flows from the first positive electrode bonding pad to the first negative electrode bonding pad, the electric appliance element works.
2. The touch device of claim 1, wherein the substrate further comprises a non-touch area outside the touch area, and the external circuit is disposed in the non-touch area.
3. The touch device of claim 1, further comprising a driving element disposed on the substrate; the driving component is electrically connected with the first electrical interface so as to generate current flowing to the first electrical interface.
4. The touch device of claim 1, further comprising a second electrical interface disposed on the substrate; the second electrical interface is electrically connected with the first electrical interface; the second electrical interface is also used for being electrically connected with an external driving circuit;
wherein the second electrical interface is configured to receive current generated by the driver circuit and direct the current to the first electrical interface.
5. The touch device of claim 1, wherein the first electrical interface is a flash interface.
6. The touch device of claim 1, wherein the first electrical interface is a key interface.
7. The touch device of claim 1, further comprising a copper film layer disposed on an outer surface of the first electrical interface.
8. The touch device of claim 1, wherein the substrate is made of a flexible material.
9. The touch device of claim 1, wherein the substrate is made of a light transmissive material.
10. An electronic device, comprising the touch device of any one of claims 1 to 9.
CN201922282353.6U 2019-12-18 2019-12-18 Touch device capable of being externally connected with electrical component and electronic equipment Active CN211375572U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922282353.6U CN211375572U (en) 2019-12-18 2019-12-18 Touch device capable of being externally connected with electrical component and electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922282353.6U CN211375572U (en) 2019-12-18 2019-12-18 Touch device capable of being externally connected with electrical component and electronic equipment

Publications (1)

Publication Number Publication Date
CN211375572U true CN211375572U (en) 2020-08-28

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Application Number Title Priority Date Filing Date
CN201922282353.6U Active CN211375572U (en) 2019-12-18 2019-12-18 Touch device capable of being externally connected with electrical component and electronic equipment

Country Status (1)

Country Link
CN (1) CN211375572U (en)

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